防爆加(jia)(jia)(jia)(jia)熱(re)管是一種消耗電(dian)(dian)能(neng)轉換為熱(re)能(neng),來對(dui)需加(jia)(jia)(jia)(jia)熱(re)物料(liao)進行加(jia)(jia)(jia)(jia)熱(re)。防爆加(jia)(jia)(jia)(jia)熱(re)管是由外(wai)(wai)到(dao)里(li)外(wai)(wai)殼(不(bu)繡鋼/碳鋼/銅(tong)(tong)/鈦材等、發熱(re)絲(鎳鉻鉛合金)、填(tian)充物(氧(yang)化鎂,作用是導(dao)熱(re)、絕緣)、外(wai)(wai)殼(不(bu)繡鋼、碳鋼、鈦材、銅(tong)(tong) 等)、陶瓷(ci)封(feng)頭(作用:絕緣)、防爆盒(he)組成的(de)(de)。加(jia)(jia)(jia)(jia)熱(re)管在(zai)工(gong)作中(zhong)低溫(wen)流體(ti)介質(zhi)通(tong)過管道在(zai)壓力(li)作用下(xia)進入(ru)其輸入(ru)口,沿著電(dian)(dian)加(jia)(jia)(jia)(jia)熱(re)容器內部特定換熱(re)流道,運用空(kong)(kong)氣(qi)電(dian)(dian)熱(re)管的(de)(de)流體(ti)熱(re)力(li)學原理設計的(de)(de)路徑,帶(dai)走空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)管中(zhong)的(de)(de)電(dian)(dian)熱(re)元件工(gong)作中(zhong)所產生的(de)(de)高溫(wen)熱(re)能(neng)量(liang),使(shi)空(kong)(kong)氣(qi)加(jia)(jia)(jia)(jia)熱(re)管被加(jia)(jia)(jia)(jia)熱(re)介質(zhi)溫(wen)度升高,加(jia)(jia)(jia)(jia)熱(re)管出口得到(dao)工(gong)藝要求(qiu)的(de)(de)高溫(wen)介質(zhi)。
產品特點
1.升(sheng)溫(wen)時間在試驗電壓下,元件從環境溫(wen)度升(sheng)至試驗溫(wen)度時間應不大于15min
2.額定(ding)功率偏差在充分發熱的(de)條件(jian)下,元件(jian)的(de)額定(ding)功率的(de)偏差應(ying)不超過(guo)下列(lie)規定(ding)的(de)范圍;對額定(ding)功率小于(yu)等于(yu)100W的(de)元件(jian)為:士10%。對額定(ding)功率大于(yu)100W的(de)元件(jian)為+5%~- 10%或10W,取(qu)兩者(zhe)中的(de)較(jiao)大值(zhi)。
3.泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)冷態(tai)泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)以(yi)及水壓(ya)和密封試驗(yan)后泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)(chao)過0.5mA工(gong)作(zuo)溫度下的熱(re)態(tai)泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)應(ying)不超(chao)(chao)過公(gong)式中(zhong)的計算值,但(dan)不超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)mA t-發熱(re)長(chang)度mm T-工(gong)作(zuo)溫度C多(duo)個元件(jian)串聯到電(dian)(dian)(dian)源中(zhong)時,應(ying)以(yi)這一(yi)組元件(jian)為(wei) 整體進行(xing)泄(xie)(xie)露電(dian)(dian)(dian)流(liu)(liu)試驗(yan)。
4. 絕(jue)(jue)緣(yuan)電(dian)(dian)阻出廠(chang)檢驗(yan)時冷態絕(jue)(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)小于50MQ密封試(shi)驗(yan)后,長期存放或者使用后的(de)絕(jue)(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)消與(yu)MQ工(gong)作(zuo)(zuo)溫(wen)(wen)度下的(de)熱(re)態絕(jue)(jue)緣(yuan)電(dian)(dian)阻應(ying)不(bu)低于公式中(zhong)的(de)計算值,但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱(re)態絕(jue)(jue)緣(yuan)電(dian)(dian)阻MQ t一-發 熱(re)長度mmT一工(gong)作(zuo)(zuo)溫(wen)(wen)度°C
5.絕緣耐(nai)壓強度(du)元件應在規定的試(shi)驗(yan)條件和試(shi)驗(yan)電壓下保持1min,而無閃絡和擊穿現象
6.經受通斷(duan)電的能(neng)力元(yuan)件(jian)(jian)應能(neng)在(zai)規定(ding)的試驗條件(jian)(jian)下(xia)經歷(li)2000次通斷(duan)電試驗,而不發生損壞